to get a list of all networks, containing the network (address) and the dhcp utilization. For more fields, just add them to the list. Please double-check on the WAPI Admin Guide for all available fields.

Re: Wapi for export_data() ?

The WAPI documentation lists all of the available fields and indicates which are returned by default. To add additional fields add this paramter to your URL:

_return_fields+=myfield

That will add the additional field "myfield" to the default fields. If you use = instead of +=, you will only get myfield and none of the default fields will be included. You can use commas to add multiple fields (myfield1,myfield2).